Dual battery charging set up and parallel battery winching

[sooty_10]

Additional query:

Is it worth while looking the two -ve battery terminals with a cable, same size as the +ve one?
At present both batteries are earthed at different points.

I have as i figure you can never have enough earths. But I cant say it really made a noticeable difference to anything.

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[outback]

Can if you want but the thickest, heaviest, largest earth cable you can fit is "Patrol B&S"... that is what Nissan and I both use

All well and good but I have to go to the local Lawrence & Hanson branch to get the cable and they will have no idea about "Patrol B&S". So what is the real size besides as big as possible?

[the evil twin]

All well and good but I have to go to the local Lawrence & Hanson branch to get the cable and they will have no idea about "Patrol B&S". So what is the real size besides as big as possible?

Patrol B&S is a big black metal thing that the Engine, Body and Suspension bolts too...
IE use the Chassis as the earth (I was being a smart arse, who'd a thunk that eh).
Use the shortest #2 B&S length you can to connect the batteries to it

[outback]

Shock Horror!!!!! ET being a SA..

[BigRAWesty]

Patrol B&S is a big black metal thing that the Engine, Body and Suspension bolts too...
IE use the Chassis as the earth (I was being a smart arse, who'd a thunk that eh).
Use the shortest #2 B&S length you can to connect the batteries to it

This is what I have done for my wiring.
Single positive 30mm2 wire for my dual battery stuff..

[outback]

I get the idea about a BIG THICK cable between the positives, just basics.
but is that Patrol B&S nice as it still really requires lots of earth straps, AND no corrosion.
Dam, that C word again, just like the R word, (rust)